Load Specifications
Bullet Manufacturer:Barnes
Bullet Weight:300 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:9.5 x 66 SE v. Hofe load data
Case Length (l3):2.598"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:106 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:6.0
Load data in caliber 9.5 x 66 SE v. Hofe with .375 | 300gr | Barnes Banded Solid bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, Hodgdon Superformance and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 55,941 psi | 88% | 2451 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,752 psi | 86% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,579 psi | 89% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,334 psi | 90% | 2539 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,539 psi | 65% | 2408 fps | 97.5% |
| Accurate 4064 | <<locked>> | 90% | 54,650 psi | 86% | 2523 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,230 psi | 85% | 2612 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 55,013 psi | 86% | 2556 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 55,898 psi | 88% | 2556 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 49,458 psi | 78% | 2543 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,450 psi | 90% | 2549 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,100 psi | 86% | 2480 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,679 psi | 86% | 2671 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,086 psi | 88% | 2575 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,666 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,376 psi | 87% | 2661 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,927 psi | 89% | 2697 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 48,312 psi | 76% | 2536 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,740 psi | 62% | 2438 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,367 psi | 70% | 2589 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,708 psi | 86% | 2575 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 56,840 psi | 89% | 2592 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,623 psi | 89% | 2569 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,680 psi | 87% | 2490 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,101 psi | 89% | 2585 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,288 psi | 87% | 2631 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,027 psi | 85% | 2559 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 98% | 57,290 psi | 90% | 2661 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 94% | 54,404 psi | 85% | 2579 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 86% | 55,593 psi | 87% | 2566 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,677 psi | 81% | 2546 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,969 psi | 86% | 2595 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 53,954 psi | 85% | 2648 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,679 psi | 56% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,884 psi | 89% | 2566 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,709 psi | 87% | 2539 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,550 psi | 87% | 2539 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,477 psi | 87% | 2526 fps | 98.9% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,884 psi | 89% | 2595 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,245 psi | 87% | 2552 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,766 psi | 86% | 2602 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 54,592 psi | 86% | 2579 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,450 psi | 90% | 2549 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,882 psi | 86% | 2533 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,650 psi | 86% | 2490 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,521 psi | 87% | 2536 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,520 psi | 85% | 2546 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 55,448 psi | 87% | 2579 fps | 99.1% |
| Norma 201 | <<locked>> | 88% | 57,290 psi | 90% | 2546 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,346 psi | 85% | 2503 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,854 psi | 88% | 2585 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,725 psi | 90% | 2648 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 44,382 psi | 70% | 2549 fps | 97.1% |
| Norma URPᴾ | <<locked>> | 100% | 56,739 psi | 89% | 2644 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 56,347 psi | 88% | 2612 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,622 psi | 87% | 2651 fps | 99.5% |
| Ramshot TAC | <<locked>> | 84% | 54,099 psi | 85% | 2533 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 57,479 psi | 90% | 2595 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,737 psi | 86% | 2510 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,158 psi | 57% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,927 psi | 89% | 2530 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,433 psi | 85% | 2546 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,377 psi | 90% | 2661 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,623 psi | 89% | 2690 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,696 psi | 90% | 2684 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,276 psi | 90% | 2713 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 54,897 psi | 86% | 2484 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,696 psi | 90% | 2543 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,478 psi | 89% | 2582 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 46,949 psi | 74% | 2516 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 96% | 56,623 psi | 89% | 2569 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,520 psi | 85% | 2546 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,882 psi | 86% | 2533 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,521 psi | 87% | 2536 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,448 psi | 87% | 2579 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,592 psi | 86% | 2595 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,333 psi | 88% | 2562 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,913 psi | 89% | 2575 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,332 psi | 87% | 2444 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,448 psi | 87% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,752 psi | 86% | 2503 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 46,514 psi | 73% | 2513 fps | 96.2% |
| Somchem S321 | <<locked>> | 82% | 55,143 psi | 86% | 2539 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,636 psi | 86% | 2441 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,840 psi | 88% | 2549 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 56,710 psi | 89% | 2579 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,285 psi | 80% | 2602 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,703 psi | 75% | 2500 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 82% | 55,085 psi | 86% | 2405 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,593 psi | 87% | 2425 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,566 psi | 90% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,737 psi | 86% | 2484 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,665 psi | 86% | 2513 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,854 psi | 88% | 2595 fps | 100% |
| Vihtavuori N530 | <<locked>> | 84% | 54,578 psi | 86% | 2510 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,304 psi | 88% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,839 psi | 86% | 2602 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,700 psi | 68% | 2507 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,028 psi | 88% | 2572 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,331 psi | 85% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 57,290 psi | 90% | 2661 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,520 psi | 56% | 2454 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,855 psi | 89% | 2585 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 49,588 psi | 78% | 2372 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,351 psi | 66% | 2316 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,298 psi | 77% | 2451 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,437 psi | 65% | 2297 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 33,939 psi | 53% | 2267 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 40,074 psi | 63% | 2320 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 29,370 psi | 46% | 2172 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 45,759 psi | 72% | 2421 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 38,856 psi | 61% | 2290 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 98% | 46,398 psi | 73% | 2493 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,790 psi | 75% | 2421 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,298 psi | 76% | 2398 fps | 100% |
| Alliant Power Pro 2000-MR | 67.5 gr | 80% | 41,553 psi | 65% | 2461 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,522 psi | 60% | 2310 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,408 psi | 65% | 2369 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,008 psi | 47% | 2182 fps | 95.6% |
| Alliant Reloder-17 | 66.5 gr | 80% | 33,301 psi | 52% | 2297 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 98% | 45,368 psi | 71% | 2487 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 86% | 25,976 psi | 41% | 2106 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 31,357 psi | 49% | 2306 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,860 psi | 70% | 2428 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 38,334 psi | 60% | 2320 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 39,175 psi | 61% | 2290 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,429 psi | 77% | 2405 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,630 psi | 73% | 2444 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,619 psi | 81% | 2579 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,957 psi | 61% | 2320 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 38,580 psi | 60% | 2362 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 86% | 42,279 psi | 66% | 2382 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 46,166 psi | 72% | 2431 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,499 psi | 43% | 2096 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,119 psi | 66% | 2408 fps | 99.9% |
| Hodgdon Superformance | 77.3 gr | 88% | 40,799 psi | 64% | 2428 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 42% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,295 psi | 69% | 2388 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 45,876 psi | 72% | 2411 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,828 psi | 64% | 2316 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,265 psi | 68% | 2339 fps | 96.7% |
| IMR 4350 | <<locked>> | 88% | 39,204 psi | 61% | 2316 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 82% | 38,348 psi | 60% | 2274 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 28,718 psi | 45% | 2139 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 42,438 psi | 67% | 2395 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,790 psi | 75% | 2421 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,976 psi | 70% | 2398 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,498 psi | 71% | 2356 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 40,712 psi | 64% | 2320 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 33,518 psi | 53% | 2185 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 38,305 psi | 60% | 2303 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 44,788 psi | 70% | 2375 fps | 100% |
| Norma 202 | <<locked>> | 80% | 45,049 psi | 71% | 2375 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,799 psi | 64% | 2359 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 44,106 psi | 69% | 2441 fps | 95% |
| Norma MRP | <<locked>> | 96% | 38,769 psi | 61% | 2441 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 29,892 psi | 47% | 2175 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 40,263 psi | 63% | 2372 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 35,331 psi | 55% | 2306 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 47,514 psi | 74% | 2434 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,137 psi | 74% | 2451 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,329 psi | 80% | 2464 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,006 psi | 42% | 1398 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,403 psi | 84% | 2487 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,363 psi | 62% | 2303 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,598 psi | 68% | 2461 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,433 psi | 56% | 2352 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 31,256 psi | 49% | 2238 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 33,504 psi | 53% | 2290 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 48,820 psi | 77% | 2402 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,656 psi | 67% | 2333 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 36,056 psi | 56% | 2270 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 98% | 43,932 psi | 69% | 2467 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 84% | 39,175 psi | 61% | 2290 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 33,518 psi | 53% | 2185 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,976 psi | 70% | 2398 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,712 psi | 64% | 2320 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 38,305 psi | 60% | 2303 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,869 psi | 58% | 2313 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,992 psi | 72% | 2415 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,063 psi | 69% | 2392 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,035 psi | 72% | 2323 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,392 psi | 60% | 2208 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 37,159 psi | 58% | 2224 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 43,540 psi | 68% | 2461 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 51,648 psi | 81% | 2493 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,730 psi | 72% | 2323 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,687 psi | 72% | 2408 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 36,840 psi | 58% | 2274 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 26,745 psi | 42% | 2133 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 39,247 psi | 62% | 2359 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 51,895 psi | 81% | 2365 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,412 psi | 73% | 2310 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,177 psi | 66% | 2306 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,757 psi | 67% | 2320 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,041 psi | 55% | 2215 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 31,227 psi | 49% | 2175 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 47,950 psi | 75% | 2418 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,031 psi | 64% | 2313 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 30,560 psi | 48% | 2175 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 27,746 psi | 43% | 2175 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,966 psi | 49% | 2156 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 47,572 psi | 75% | 2461 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 38,740 psi | 61% | 2365 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 25,918 psi | 41% | 2172 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,584 psi | 68% | 2398 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 103 powders for 9.5 x 66 SE v. Hofe loaded with the .375 | 300gr | Barnes Banded Solid. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,713 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 2000-MR, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 9.5 x 66 SE v. Hofe with the .375 | 300gr | Barnes Banded Solid they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.